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authorGravatar Abseil Team <absl-team@google.com>2018-10-23 12:23:49 -0700
committerGravatar Ashley Hedberg <ahedberg@google.com>2018-10-23 15:52:40 -0400
commit0884a6a04e4497d11b1b398cc0e422b118bf977a (patch)
tree05d1bb9fe31a4823bf8b0dba18703573a8757f7a /absl/strings/internal/charconv_bigint.h
parentc16d5557cd05119b5b7b1318ef778ebe3195b4a1 (diff)
Export of internal Abseil changes.
-- fe689b30f9a3a614e8a577997cc340043d01c2f1 by Abseil Team <absl-team@google.com>: Change arm32 linux backtrace to use the generic implementation. PiperOrigin-RevId: 218386158 -- 86f8678d055d32edc989e6a4d1dc49c3a15cd350 by Abseil Team <absl-team@google.com>: Update documentation on SHARED_LOCKS_REQUIRED and EXCLUSIVE_LOCKS_REQUIRED so that users know the differences between them. PiperOrigin-RevId: 218365545 -- 22947b48ce4a1ba71ad4794f762235dac3a1df12 by Greg Falcon <gfalcon@google.com>: The from_chars implementation incorrectly assumed `uint32_t` was `unsigned int`. `strings_internal::BigUnsigned` had `uint32_t` and `uint64_t` constructors; when both of these types differ from `unsigned int`, `BigUnsigned(1u)` is ambiguous (neither conversion is better). Fix this by removing the `uint32_t` constructor. When the `uint64_t` constructor is called with a literal or type that is 32 bits or narrower, the compiler is smart enough to optimize away the two-word case, so this fix is free. PiperOrigin-RevId: 218346935 -- 7201ab430bb90ca0e30b102915d02564f61353eb by Abseil Team <absl-team@google.com>: Fix formatting errors discovered during merge conflict. PiperOrigin-RevId: 218229891 GitOrigin-RevId: fe689b30f9a3a614e8a577997cc340043d01c2f1 Change-Id: I5d382482ad227d48ffe57b243ce11b1eb44a1314
Diffstat (limited to 'absl/strings/internal/charconv_bigint.h')
-rw-r--r--absl/strings/internal/charconv_bigint.h15
1 files changed, 4 insertions, 11 deletions
diff --git a/absl/strings/internal/charconv_bigint.h b/absl/strings/internal/charconv_bigint.h
index aa70af2c..5c579437 100644
--- a/absl/strings/internal/charconv_bigint.h
+++ b/absl/strings/internal/charconv_bigint.h
@@ -57,17 +57,10 @@ class BigUnsigned {
"unsupported max_words value");
BigUnsigned() : size_(0), words_{} {}
- explicit BigUnsigned(uint32_t v) : size_(v > 0 ? 1 : 0), words_{v} {}
- explicit BigUnsigned(uint64_t v)
- : size_(0),
- words_{static_cast<uint32_t>(v & 0xffffffff),
- static_cast<uint32_t>(v >> 32)} {
- if (words_[1]) {
- size_ = 2;
- } else if (words_[0]) {
- size_ = 1;
- }
- }
+ explicit constexpr BigUnsigned(uint64_t v)
+ : size_((v >> 32) ? 2 : v ? 1 : 0),
+ words_{static_cast<uint32_t>(v & 0xffffffffu),
+ static_cast<uint32_t>(v >> 32)} {}
// Constructs a BigUnsigned from the given string_view containing a decimal
// value. If the input std::string is not a decimal integer, constructs a 0